Outer filter element



FIG. 1 is a top front right perspective view of a first embodiment of an outer filter element showing the new design;

FIG. 2 is a top front right perspective view of the outer filter element with an inner filter element of the filter being removed or inserted from the outer filter element thereof;

FIG. 3 is a bottom rear left perspective view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left elevational view thereof;

FIG. 7 is a right elevational view thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof;

FIG. 10 is a top front right perspective view of the outer filter element of FIG. 1, shown in a second embodiment;

FIG. 11 is a top front right perspective view of the outer filter element with an inner filter element of the filter being removed or inserted from the outer filter element thereof;

FIG. 12 is a bottom rear left perspective view thereof;

FIG. 13 is a front elevational view thereof;

FIG. 14 is a rear elevational view thereof;

FIG. 15 is a left elevational view thereof;

FIG. 16 is a right elevational view thereof;

FIG. 17 is a top plan view thereof; and,

FIG. 18 is a bottom plan view thereof.

The broken lines shown in the drawings depict portions of the outer filter element that form no part of the claimed design. 

CLAIM The ornamental design for an outer filter element, as shown and described. 